Did Suzuki in 2000 - 2001 DT 140 do away with the "flow switch" in the head and replaced it with a neoprene like plug? The plug has two mounting holes and is kinda a triangle shape and no wires attached to it and dont see any evidence of wire hole in the plug. I dont want to try to remove this plug if that is what it is. On my 1988 DT140 there is a flow switch that I remove every few years to check the switch being free to move up & down in the same spot as the 2000 DT140.